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Parent Company Statements (Tables) | 12 Months Ended
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Dec. 31, 2017
Condensed Financial Information of Parent Company Only Disclosure [Abstract] |
Balance Sheets |
Condensed Balance Sheets
December 31, 2017 and 2016
(In thousands) |  | 2017 |  | 2016
Assets: |  |  |  |
Cash |  | $ | 79,452 |  |  | $ | 112,067 |
Investment in subsidiaries |  | 645,287 |  |  | 626,569 |
Debentures receivable from PNB |  | 25,000 |  |  | 25,000 |
Other investments |  | 1,398 |  |  | 2,962 |
Other assets |  | 26,838 |  |  | 26,651 |
Total assets |  | $ | 777,975 |  |  | $ | 793,249 |
Liabilities: |  |  |  |
Subordinated notes |  | 15,000 |  |  | 45,000 |
Other liabilities |  | 6,874 |  |  | 6,009 |
Total liabilities |  | 21,874 |  |  | 51,009 |
Total shareholders’ equity |  | 756,101 |  |  | 742,240 |
Total liabilities and shareholders’ equity |  | $ | 777,975 |  |  | $ | 793,249 |
Statements of Income |
Condensed Statements of Income
for the years ended December 31, 2017, 2016 and 2015
(In thousands) |  | 2017 |  | 2016 |  | 2015
Income: |  |  |  |  |  |
Dividends from subsidiaries |  | $ | 60,000 |  |  | $ | 60,000 |  |  | $ | 60,000 |
Interest and dividends |  | 1,500 |  |  | 2,164 |  |  | 2,561 |
Gain on sale of investment securities |  | 1,821 |  |  | — |  |  | — |
Other |  | 1,405 |  |  | 1,081 |  |  | 560 |
Total income |  | 64,726 |  |  | 63,245 |  |  | 63,121 |
Expense: |  |  |  |  |  |
Interest expense |  | 1,073 |  |  | 2,429 |  |  | 2,369 |
Other, net |  | 8,805 |  |  | 9,730 |  |  | 9,972 |
Total expense |  | 9,878 |  |  | 12,159 |  |  | 12,341 |
Income before federal taxes and equity in undistributed income of subsidiaries |  | 54,848 |  |  | 51,086 |  |  | 50,780 |
Federal income tax benefit |  | 2,695 |  |  | 4,357 |  |  | 4,671 |
Income before equity in undistributed income of subsidiaries |  | 57,543 |  |  | 55,443 |  |  | 55,451 |
Equity in undistributed income of subsidiaries |  | 26,699 |  |  | 30,692 |  |  | 25,561 |
Net income |  | $ | 84,242 |  |  | $ | 86,135 |  |  | $ | 81,012 |
Other comprehensive loss (1) |  | (8,709 | ) |  | (2,102 | ) |  | (2,035 | )
Comprehensive income |  | 75,533 |  |  | 84,033 |  |  | 78,977 |
Statements of Cash Flows |
Statements of Cash Flows
for the years ended December 31, 2017, 2016 and 2015
(In thousands) |  | 2017 |  | 2016 |  | 2015
Operating activities: |  |  |  |  |  |
Net income |  | $ | 84,242 |  |  | $ | 86,135 |  |  | $ | 81,012 |
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |  |  |  |
Undistributed income of subsidiaries |  | (26,699 | ) |  | (30,692 | ) |  | (25,561 | )
Compensation expense for issuance of treasury stock to directors |  | 1,241 |  |  | 950 |  |  | 963 |
Share-based compensation expense |  | 2,701 |  |  | 1,864 |  |  | 865 |
Realized net investment security gains |  | (1,821 | ) |  | — |  |  | — |
Decrease (increase) in other assets |  | 205 |  |  | (3,425 | ) |  | (182 | )
Increase (decrease) in other liabilities |  | 475 |  |  | (2,524 | ) |  | 485 |
Net cash provided by operating activities |  | 60,344 |  |  | 52,308 |  |  | 57,582 |
Investing activities: |  |  |  |  |  |
Proceeds from sales of securities |  | 2,265 |  |  | — |  |  | — |
Repayment of investments in and advances to subsidiaries |  | — |  |  | 15,000 |  |  | 10,000 |
Net cash provided by investing activities |  | 2,265 |  |  | 15,000 |  |  | 10,000 |
Financing activities: |  |  |  |  |  |
Cash dividends paid |  | (57,493 | ) |  | (57,653 | ) |  | (57,776 | )
Repayment of subordinated notes |  | (30,000 | ) |  | — |  |  | — |
Repurchase of treasury shares |  | (7,378 | ) |  | — |  |  | (6,058 | )
Cash payment for fractional shares |  | (6 | ) |  | (4 | ) |  | (3 | )
Value of common shares withheld to pay employee income taxes |  | (347 | ) |  | — |  |  | — |
Net cash used in financing activities |  | (95,224 | ) |  | (57,657 | ) |  | (63,837 | )
(Decrease) increase in cash |  | (32,615 | ) |  | 9,651 |  |  | 3,745 |
Cash at beginning of year |  | 112,067 |  |  | 102,416 |  |  | 98,671 |
Cash at end of year |  | $ | 79,452 |  |  | $ | 112,067 |  |  | $ | 102,416 |

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